Method of packing



May 10., 1927.

F. MACY METHOD OF PACKING Original Filed, March 1924 Patented May 10, 1927.

UNITED STATES PATENT OFFICE.

FRANK MACY, OF CONVERSE, INDIANA.

METHOD OF PACKING.

Application filed March 1, 1924, Serial No. 696,309. Renewed March 26, 1927.

This invention relates to a method of packaging paper disks such as used for example, in sealing milk bottles and other containers. Disks of this character are usually treated with paraffin but, underpresent methods of assembling the disks or caps in tubular containers for use in bottle capping machines, the disks have adhered to each other and the proper placing thereof upon the containers has been seriously interfered with.

It is an object of the present invention to provide a means for impregnating the disks with paraffin and immediately thereafter placing them in a heat retaining container where the caps are held at a suificiently high temperature to insure complete absorption of the paraflin by the disks before they become cool. In this way accumulations of unabsorbed paraffin upon and between the disks are prevented and the disks will not adhere as heretofore when placed in containers.

With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed it being understood that changes in the precise embodiment of the invention herein disclosed may be made within the scope of what is claimed without departing from the spirit of the invention.

In the accompanying drawings one method of packaging bottle caps or disks has been illustrated.

In said drawings:

Figure 1 is a view illustrating in diagram the mechanism utilized for packaging the disks, one of the containers for the disks being shown in position.

Fig. 2 is a section through a sealed con tainer with the disks therein.

Referring to the figures by characters of reference 1 designates a tubular container preferably formed of paper and of the usual type employed for-holding disks in proper position within a bottle capping machine. In the present instance this container is arranged with its lower end open while its upper end is sealed by means of a head 2 such as usually employed. The lower open end of the container is adapted to receive aguide trough 3 into which projects a short spiral 4 adapted to rotate with a shaft 5. A chute 6 is located adjacent the spiral and is inclined so as to direct disks by gravity to the spiral. This chute, in turn, is designed to receive disks from a feed belt 7 adjacentthereto and the belt, in turn, is arranged to receive disks from a chute 8. This chute is inclined downwardly from the delivery portion of an endless conveyor 9 mounted on rolls 10 one of these rolls being located within the lower portion of a tank 11 for holding hot liquid paraffin indicated at P. The upperor conveying portion of the conveyor belt 9 is extended between superposed pressure rolls 12.

The parts herein described are adapted to be driven in any suitable manner. For example a motor M can be used for driving a belt 13 adapted to rotate one of the rolls 10. Other belts 1d and 15 can be employed for transmitting motion from one of the rolls 10 to one of the rolls 16 on which belt 7is mounted and from one of the rolls 16 to a pulley 17 on shaft 5. Obviously various other mechanisms can be used for operating the parts.

After the tube 1 has been placed in the position shown the caps to be packaged are fed onto the belt 9. Here they will come in contact with liquid paraflin of a high temperature that has been carried upwardly from the tank 11 by the operation of the belt Each cap will immediately begin to absorb paraffin and as the cap passes between the rolls 12 excess parafiine will be held back by the rolls as shown at P. The disks with the hot paraifin thereon will slide along chute 8 to belt 7 and from belt 7 to chute 6 which, in turn, will direct the disks between the convolutions of the worm 4. The rotation of the worm will force the disks upwardly along trough 3 into container 1 and as the disks are still hot the air within the container will be maintained at a high temperature because the container is sealed at the top and the hot gases cannot escape upwardly. The heat thus supplied to and retained by the container will maintain the stacked disks in a sufficiently heated condition to prevent'them from adhering and to keep the paraflin in a liquid state until it has been absorbed by the various disks in the container. After the container has been filled it is removed and the lower end is capped and sealed in the usual manner, thereby producing a complete package such as shown in section in Fig. 2. The end of the container which is last closed and sealedhas been indicated at 18 in Fig. 2.

Heretotore when disks have been packaged they have been placed in open ended containers from which the heat escapes quickly and, consequently, the paraffin congeals before it is absorbed entirely. Thus the disks will adhere to each other. By pursuing the method herein described, however, heat is retained in the container for a snflieiently long period to insure proper absorption of all par-affine with the result that the disks will not adhere when they finally be come cool in the container.

What is claimed is The herein described method of preparing and packaging bottle caps and the like which consists in impregnating the caps with parafiin and delivering them, while hot, upwardlyrinto the open lower end of a con tainer, said container being sealed at its upper end.

In testimony that I claim the foregoing as my own, I have hereto afliXed my signature.

FRANK MACY. 

